Where checkout changed
Cross-border buyers usually decide at the first scroll whether tax and billing rules are manageable.
Make tax inclusion, checkout method, and invoice expectations explicit before the assistant suggestion layer.
Do not trust one conversion number
The useful question is no longer whether a purchase happened; it is which step created the hesitation, missing fact, or measurement gap.
Check the event model
- Create one page that joins checkout rules, tax handling, and support windows
- Keep the test narrow: one priority product or checkout flow before expanding recommendation, authorization, payment, and support work
What still needs proof
Assumptions hidden in backend logic will increase noisy visits without cleaner qualification. Keep the original source open so the announcement, the evidence, and this site's interpretation stay separate.